Atlantic County New Jersey Library has an online Immigration & Naturalization Records searchable database. They have a few thousand records indexed and digitized. They are mainly declarations and letters of intent from 1850-1930From the website:
"Search or browse for immigration records (declarations of intention and correspondence) from 1850-1930. Most records are declarations of intention. The declaration provides background on immigrants and required the immigrant to renounce forever allegiance to the government of their native homeland. The database is indexed by last name.These records were copied from microfilm, and often in the handwriting of the Atlantic County Surrogate or Atlantic County Clerk."
For more naturalization records online see NaturalizationRecords.com website
